18897543

素因数分解:

$3^4\times 7^1\times {\mathrm{33329}}^1$

素因数の和:33348

約数の個数: 20

約数和(自身を含む): 32263440

約数和(自身を除く): 13365897

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 33329, 99987, 233303, 299961, 699909, 899883, 2099727, 2699649, 6299181, 18897543]

約数ペア:

[(1, 18897543), (3, 6299181), (7, 2699649), (9, 2099727), (21, 899883), (27, 699909), (63, 299961), (81, 233303), (189, 99987), (567, 33329)]